##### FOR Mathematics Expert

Read the instructions in the attached 3 templets which are chapter,7,8,9 and 11 answer the questions in the templete.

## Name:

# Chapter 7 Instructions

Practice Problem 14

Due Week 5 Day 6 (Sunday)

Follow the instructions below to submit your answers for Chapter 7 Practice Problem 14.

1. Save Chapter 7 Instructions to your computer.

2. Type your answers into the shaded boxes below. The boxes will expand as you type your answers.

3. Resave this form to your computer with your answers filled-in.

4. Attach the saved form to your reply when you turn-in your work in the Assignments section of the Classroom tab. Note: Each question in the assignments section will be listed separately; however, you only need to submit this form one time to turn-in your answers.

Below is an explanation of the symbols in Chapter 7, Practice Problem 14.

M = Mean

S2 = Population Variance

SM = Standard Deviation of the Distribution of Means

t = score for your sample

t needed = cut-off score that establishes the region of rejection (also known as the critical value)

Decision: * Reject the Null *or

*(select only one)*

__Fail to Reject the Null__Read Chapter 7 Practice Problem 14 in your text book and then type your answers beside into the shaded boxes below. Note: Please provide only those answers indicated below, nothing more. You do not need to show your work. Round your answers to 2 decimal places.

M =

S2 =

SM =

t =

t needed = +

Decision:

## Name:

# Chapter 8 Instructions

Practice Problem 18

Due Week 5 Day 6 (Sunday)

Follow the instructions below to submit your answers for Chapter 8 Practice Problem 18.

1. Save Chapter 8 Instructions to your computer.

2. Type your answers into the shaded boxes below. The boxes will expand as you type your answers.

3. Resave this form to your computer with your answers filled-in.

4. Attach the saved form to your reply when you turn-in your work in the Assignments section of the Classroom tab. Note: Each question in the assignments section will be listed separately; however, you only need to submit this form one time to turn-in your answers.

Below is an explanation of the symbols in Chapter 8, Practice Problem 18.

N1 = number of participants in the experimental group

N2 = number of participants in the control group

df1 = degrees of freedom for the experimental group

df2 = degrees of freedom for the control group

dfTotal = degrees of freedom for both groups

M1 = mean of the experimental group

M2 = mean of the control group

S21 = estimated population variance of the experimental group

S22 = estimated population variance of the control group

S2Pooled = pooled estimate of the population variance

S2M1 = variance of the distribution of means for the experimental group

S2M2 = variance of the distribution of means for the control group

S2Difference = variance of the distribution of differences between means

SDifference = standard deviation of the distribution of differences between means

t = score for your sample

t needed = cut-off score that establishes the region of rejection (also known as the critical value)

Decision: * Reject the Null *or

*(select only one)*

__Fail to Reject the Null__Read Chapter 8 Practice Problem 18 in your text book and then type your answers into the shaded boxes below. Note: Please provide only those answers indicated below, nothing more. You do not need to show your work. Round your answers to 2 decimal places.

N1 =

N2 =

df1 =

df2 =

dfTotal =

M1 =

M2 =

S21 =

S22 =

S2Pooled =

S2M1 =

S2M2 =

S2Difference =

SDifference =

t =

t needed = +

Decision:

## Name:

# Chapter 9 Instructions

Practice Problem 17

Due Week 5 Day 6 (Sunday)

Follow the instructions below to submit your answers for Chapter 9 Practice Problem 17.

1. Save Chapter 9 Instructions to your computer.

2. Type your answers into the shaded boxes below. The boxes will expand as you type your answers.

3. Resave this form to your computer with your answers filled-in.

4. Attach the saved form to your reply when you turn-in your work in the Assignments section of the Classroom tab. Note: Each question in the assignments section will be listed separately; however, you only need to submit this form one time to turn-in your answers.

Below is an explanation of the symbols in Chapter 9, Practice Problem 17.

S2Between = between groups population variance estimate

S2Within = within groups population variance estimate

F = statistical score that represents the ratio of the between groups to the within groups population variance estimate

F needed = cut-off score that establishes the region of rejection (also known as the critical value)

both groups

Decision: * Reject the Null *or

*(select only one)*

__Fail to Reject the Null__Read Chapter 9 Practice Problem 17 in your text book and then type your answers into the shaded boxes below. Note: Please provide only those answers indicated below, nothing more. You do not need to show your work. Round your answers to 2 decimal places.

S2Between =

S2Within =

F =

F needed = +

Decision: